Antoinette Sandbach MP and Tim Loughton MP cut the ribbon for the opening of Westminsters first solar park calling on the government to stop their plans to axe the export tariff on 5th December 2018 in Westminster, London. United Kingdom. The tariff pays small scale solar owners for their excess energy. Climate campaign group 10:10 covered Old Palace Yard outside the House of Commons with dozens of solar panels held by climate activists.